Structure controlling and process scale-up in the fabrication of nano-materials

摘要

@@New materials with nanoscale structures attracted more and more international attentions because of its importance in the national economy and people's lives. In recent years, the synthesis of nano-materials had a breakthrough, which develops from the simple synthesis and characterization to the structure controlling at nano-scale as well as forming the composite material system with a specific structure through assembly or other methods. However, the real aim of nano-materials is to develop their practical applications, which needs to solve potential scale-up problems during the nano-material fabrication process. National Science and Technology Council of U.S. pointed out that the engineering magnification and process control of the nano-materials preparation and application is still the key issue to be solved in the future. The chemistry discipline focuses on the research of the material synthesis and control at the micro-scale such as the molecular and atomic level, whereas the traditional chemical engineering discipline pays more attention to the macro characteristics of the preparation system. For the preparation and control of nano-materials, it belongs to the mesoscopic filed between the micro and macro scale. The president of the European Federation of Chemical Engineering, Professor J.-C. Charpentier, pointed out that multi-scale controlling is the developing direction of chemistry and process engineering in future and nano-materials processing and structure control are the very important issues to the chemical engineers. The Key Laboratory for Ultrafine Materials of Ministry of Education of East China University of Science and Technology has long been engaged in the researches on the crystal growth principles, how to control the material structure, as well as the scaleup regulations of the nano-material preparation process for many novel structure nano-materials.